<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
  </head>

  <body>
    <div id="app">
      <div v-if='score>= 90'>优秀</div>
      <div v-else-if='score < 90 && score>= 80'>良好</div>
      <button v-on:click = 'handle'>切换</button>
    </div>
    <script type="text/javascript">
      const vm = new Vue({
        el: "#app",
        data: {
          score:85,
        },
        methods: {
          handle: function () {
          
          },
        },
      });
    </script>
  </body>
</html>
